Tool-holder.



J. L. STOFFER.

TOOL HOLDER.

APPLICATION FILED SEPT. 28, 1900.

Patented May 24, 1910.

Wan /5m ANDREW TO-LlTMOGRAPNERs WASNNGTUPI. n, c

UNITED STATES PATENT OFFICE.

JACOB L. STOFFER, OF HOMEWORTH, OHIO, ASSIGNOR 0F ONE-HALF TO B. R.GREENEISEN, OF COLUMBIANA COUNTY, OHIO.

TOOL-HOLDER.

Specification of Letters Patent.

Patented May 24, 1910.

To all whom it may concern:

Be it known that I, JAooB L. STOFFER, a citizen of the United States,residing at Homeworth, in the county of Golumbiana and State of Ohio,have invented certain new and useful Improvements in Tool- Holders, ofwhich the following is a specification.

This invention relates to tool holders and has for its object to providea comparatively simple and thoroughly efficient device of this characterfor holding edged tools in contact with a grind stone when sharpeningthe same.

A further object is to provide a tool holder, the construction of whichis such that the operator may press the cutting edge of the tool againstthe grind stone with one hand and with the other hand rotate said stoneto effect the sharpening of the tool.

A further object is to provide means for adjusting the pivoted standardof the operating lever laterally with respect to the supportlng frame soas to permit the sharpening of tools having relatively long handles.

A still further object of the invention is generally to improve thisclass of devices so as to increase their utility, durability andefficiency.

Further objects and advantages will appear in the following description,it being understood that various changes in form, proportions and minordetails of construction may be resorted to within the scope of theappended claims.

For a full understanding of the invention and the. merits thereof andalso to acquire a knowledge of the details of construction and the meansfor efiecting the result, reference is to be had to the followingdescription and accompanying drawings, in which:

Figure 1 is a perspective view of a tool holder, constructed inaccordance with my invention; Fig. 2 is a longitudinal sectional view ofthe same.

Corresponding and like parts are referred to in the followin descriptionand indicated in all the views 0 the drawings by the same referencecharacters.

The device comprises a supporting frame including spaced longitudinallydisposed sills 5 connected at their rear ends by tie rods 6 and providedat their forward ends with longitudinal slots 7 for the reception ofbolts or similar fastening devices 8 by means of which the same may besecured to the supporting stand or grind stone, indicated at 9.

Extending vertically from the intermediate portions of the longitudinalsills 5 are uprights 10 upon which is mounted a top plate 11, the latterbeing rigidly secured to the uprights by means of vertical tie rods 12,the lower ends of which pierce the longitudinal sills 5, while the upperends thereof are threaded for engagement with suitable clamping nuts 13.

Slidably mounted between the rear faces of the uprights 10 and adepending guide strip 1% carried by the top plate 11, is alongitudinally movable plate 15, there being a similar plate 16 slidablymounted on the sills 5 between the standards and a guide strip 17secured to the rear ends of the sills,

as best shown in Fig. 2 of the drawings.

The upper and lower plates 15 and 16 are provided with alined openings18 adapted to receive the trunnions 19 of a pivoted standard 20. Thestandard 20 is provided with a vertically disposed slot 21 in which ispivotally mounted for tilting movement the rearwardly extending shank 22of an operating lever 23. Fastened to the lower edge of the operatinglever 23 are spaced clamping bars 24: adapted to receive and clamp anedged tool, indicated at 25, the tool 25 being held in position byrotating the nuts 26. Fastened in any suitable manner to the upperlongitudinal edge of the lever 23, is a handle 27 so that by graspingthe handle 27 the operator may hold the active edge of the tool 25 incontact with the grind stone with one hand and rotate said grind stonewith the other hand to efiect the sharpening of the tool. The shank 22of the operating lever is provided with a series of perforations 28,preferably disposed in staggered relation and adapted to receive a pivotpin 29, there being vertical openings 30 formed in the walls of the slot21 and adapted to register with the openings or perforations 28 toaccommodate the pivot pin 29. By making the standard and lever in thisman ner, said lever may be adjusted both vertically and longitudinallyso as to vary the position of the tool 25 with respect to the grindingsurface of the stone and thus permit the sharpening of different stylesof tools.

The plates 15 and 16 are provided with slots 31 through which extendbolts 32, the latter being secured to the top plate 11 and a fillingblock 33 interposed between the tie rods 6 and provided with threads forengagement with suitable clamping nuts so that by adjusting said nuts onthe bolts, the plates 15 and 16 may be fastened in adj usted position.Thus it will be seen that by loosening the bolts or fastening devices 32and moving the plates 15 and 16 laterally in either direction, thestandard 20 may be moved to either side of the center of the supportingframe so as to permit the sharpening of tools having relatively longhandles.

In using the device, the tool to be sharpened is inserted between theclamping bars 2 1 and retained in position by adjusting the thumb nuts26, after which the operator grasps the handle 27 with one hand andpresses downwardly thereon so as to bring the active edge of the tool incontact with the grind stone, and with the other hand rotates the crank34, thus permitting the sharpening of the tool in a ready and convenientmanner.

Having thus described the invention, what is claimed as new is:

1. A device of the class described including a frame, a standardpivotally mounted on the frame and adjustable laterally with respectthereto, an operating handle pivotally mounted on the standard, andmeans carried by the operating handle for clamping a tool.

2. A device of the class described including a frame, sliding platesmounted 011 the frame, a standard pivotally mounted on said plates, anoperating lever pivotally mounted on the standard, means carried by thelever for clamping a tool, and means for securing the plates in adjustedposition.

3. A device of the class described including a frame, a slotted standardpivotally mounted on the frame and provided with a vertical row ofperforations, an operating lever having a shank extending through theslot in the standard and provided with a series of transverseperforations, a pivot pin extending through one of the perforations inthe shank and adjacent perforations in the standard, and means carriedby the lever for clamping a tool.

4:. A device of the class described including a frame, slotted platesslidably mounted on the frame, a standard pivotally mounted between saidplates, an operating lever pivotally mounted for tilting movement on thestandard, means carried by the operating lever for clamping a tool, andfastening devices secured to the frame and extending through the slotsin the plates for securing said plates in adjusted position.

5. A device of the class described including a frame, slotted platesslidably mounted on the frame, a slotted standard pivotally mountedbetween the sliding plates, a lever having its rear end reduced to forma shank extending through a slot in the standard and pivotally connectedtherewith, transverse clamping bars carried by the forward end of thelever for en 'agement with a tool, and means for clamplng the slidingplates in adjusted position.

6. A device of the class described including a frame formed of spacedlongitudinal sills having uprights secured thereto and connected by atop plate, tie rods connecting the longitudinal sills, similar rodsforming a connection between the top plate and said sills, a standardpivotally mounted on the frame, an operating lever pivotally mounted fortilting movement on the standard and extending longitudinally betweenthe uprights, and means carried by the lever for clamping a tool.

7. A device of the class described including a frame formed of spacedlongitudinal sills, uprights secured to the sills, a top plateconnecting the uprights and provided with a depending strip, an upperplate slidably mounted on the top plate and bearing against saiduprights and depending strip respectively, a transverse strip connectingthe sills, a lower plate slidably mounted between the transverse stripand uprights, a standard pivotally mounted between the sliding plates,an operating lever pivotally connected with the standard, means carriedby the operating lever for clamping a tool, and means for securing thesliding plates in adjusted position.

8. A device of the class described including spaced longitudinal sillshaving their forward ends slotted, a filling block interposed betweenthe rear ends of the sills, uprights secured to the sills and connectedby a top plate, a depending strip secured to the top plate, an upperplate slidably mounted between the depending strip and uprights andbearing against the top plate, a transverse strip connecting the sills,a lower plate slidably mounted between said transverse strip anduprights, said upper and lower plates being provided with longitudinalslots and having alined openings formed therein, a vertical slottedstandard having oppositely disposed trunnions pivotally mounted in theopenings in the sliding plates, a lever extending through the slot inthe standard and pivotally connected there with, means carried by thelever for clamping a tool, tie rods connecting the longitudinal sills onopposite sides of the filling In testimony whereof I affix mysignablock, similar tie rods forming a connection ture in presence oftwo witnesses.

between the top plate and sills and fastening devices extending throughthe top plate JACOB STOFFER' and filling block and also through theslots Witnesses: in the sliding plates for clamping the latter R. R.GREENEISEN, in adjusted position. SAMUEL WAUG.

